A visual data analysis for determining the geographical extent of the cabreves

The historical cadastral archives are an important source of information to help understand our cultural heritage since they contain a trace the activities, land uses, and buildings developed by people from different periods. However, in era Big Data there remain many documents great value that have not been digitized or studied depth. This is case cabreves, which precatastral used for centuries several regions Spain document those properties were subject payment taxes feudal lord. Rescuing these data would enable studying landscape structure relatively recent dates no cartography. it difficult establish state conservation, degree accessibility, content detail, quality archived cabreves. In years, progress has made digitizing sources. Spain, Spanish Archives Portal (PARES) harmonizes unifies efforts national archives, significant number years. We use text mining techniques analyze map records cabreves appear. Out 1752 found, total 1408 geocoded mapped, enabling us territories periods can be using From this experience, we request digital maintain geographical perspective during archival appraisal.